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2. 2014 Dan River coal ash spill - Wikipedia

   en.wikipedia.org/wiki/2014_Dan_River_coal_ash_spill

   Coal companies have found that the cheapest way to store this waste is to mix it with water and store it in a pond. These ponds have been found to have leaks that can dispose hazardous material into surface water among other things. [9] EPA has identified at least 25 coal ash ponds in the southeast that are "high hazard". [10]

3. Agricultural wastewater treatment - Wikipedia

   en.wikipedia.org/wiki/Agricultural_wastewater...

   Milking parlour wastes also contain large volumes of wash-down water, some animal waste together with cleaning and disinfection chemicals. Treatment. Milking parlour wastes are often treated in admixture with human sewage in a local sewage treatment plant. This ensures that disinfectants and cleaning agents are sufficiently diluted and amenable ...

4. Waste stabilization pond - Wikipedia

   en.wikipedia.org/wiki/Waste_stabilization_pond

   The system may consist of a single pond or several ponds in a series, each pond playing a different role in the removal of pollutants. After treatment, the effluent may be returned to surface water or reused as irrigation water (or reclaimed water) if the effluent meets the required effluent standards (e.g. sufficiently low levels of pathogens).

5. Aerated lagoon - Wikipedia

   en.wikipedia.org/wiki/Aerated_lagoon

   The ponds or basins may range in depth from 1.5 to 5.0 meters. [ 6 ] In a surface-aerated system, the aerators provide two functions: they transfer air into the basins required by the biological oxidation reactions, and they provide the mixing required for dispersing the air and for contacting the reactants (that is, oxygen, wastewater and ...

6. Facultative lagoon - Wikipedia

   en.wikipedia.org/wiki/Facultative_lagoon

   Facultative lagoon (polishing pond) providing tertiary treatment after a constructed wetland in Hamburg-Allermöhe, Germany. Overflow from the facultative lagoon may be routed through one or more polishing ponds supporting lower populations of anaerobic micro-organisms and a higher proportion of aerobic organisms adapted to survival in lower concentrations of organic material.

7. RI Trout Unlimited, DEM land funds for the Breakheart Pond ...

   www.aol.com/ri-trout-unlimited-dem-land...

   Rhode Island Trout Unlimited and the state Department of Environmental Management received a $190,000 2024 SNEP grant for their joint project — engineering for the removal of Breakheart Pond Dam ...

8. Portable water purification - Wikipedia

   en.wikipedia.org/wiki/Portable_water_purification

   Iodine used for water purification is commonly added to water as a solution, in crystallized form, or in tablets containing tetraglycine hydroperiodide that release 8 mg of iodine per tablet. The iodine kills many, but not all, of the most common pathogens present in natural fresh water sources.

9. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!